Search: Herschel, John in author 
Herschel, John in correspondent 
1840-1849::1840 in date 
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Herschel6055

From:
Sir John Herschel
To:
Francis Baily
Date:
14] April [1840
Source of text:
RS:HS 3.180 (C: RS:HS 25.8.26)
Summary:

Received a 5-ft. Newtonian reflector from JH's aunt Caroline; is offering it to the R.A.S. JH is on the verge of moving to Collingwood.

Contributor:
John Herschel Project

Herschel6057

From:
Sir John Herschel
To:
Francis Baily
Date:
[6 May 1840]
Source of text:
RS:HS 3.182 (C: RS:HS 25.8.27)
Summary:

Would FB deputize for him at the council meeting on Friday as he is unable to attend. Letter from F. W. Bessel regarding 61 Cygni. Has written to G. B. Airy regarding Thomas Maclear's paper.

Contributor:
John Herschel Project

Herschel6058

From:
Sir John Herschel
To:
Francis Baily
Date:
[8 June 1840]
Source of text:
RS:HS 3.183 (C: RS:HS 25.8.28)
Summary:

Invitation to Hawkhurst. Has plenty of R.S.L. work to keep him from his observational work. Question of a new observatory. Has had letter from Wilhelm Struve regarding the fifteen-inch object glass.

Contributor:
John Herschel Project

Herschel6060

From:
Sir John Herschel
To:
Francis Baily
Date:
[8 November 1840]
Source of text:
RS:HS 3.185 (C: RS:HS 25.8.29)
Summary:

Encloses observations on a comet by Carl Bremiker for the next meeting of the R.A.S. Will be unable to attend many of the meetings for this session. F. W. Bessel has lost his only son. C. F. Gauss's researches into the motion of the sun.

Contributor:
John Herschel Project

Herschel6063

From:
Sir John Herschel
To:
Francis Baily
Date:
[23 November 1840]
Source of text:
RS:HS 3.188-9 (C: RS:HS 25.8.30)
Summary:

Regarding the award of the Royal Medal of the R.S.L. Is unable to come to town. Regarding the appointment of visitors to the Royal Observatory. Is preparing a paper on celestial reform.

Contributor:
John Herschel Project

Herschel6067

From:
Sir John Herschel
To:
Francis Baily
Date:
[10 December 1840]
Source of text:
RS:HS 3.193 (C: RS:HS 25.8.31)
Summary:

Regarding the arrangement of the constellations.

Contributor:
John Herschel Project

Herschel6069

From:
Sir John Herschel
To:
Francis Baily
Date:
[30 December 1840]
Source of text:
RS:HS 3.195 (C: RS:HS 25.8.32)
Summary:

Giving news of his own recent work on the grouping of the constellations.

Contributor:
John Herschel Project

Herschel6501

From:
Sir John Herschel
To:
Spencer J. A. Compton
Date:
1840-7
Source of text:
RS:HS 22.74
Summary:

Organizational matters relating to sending two vessels on an Antarctic expedition.

Contributor:
John Herschel Project

Herschel6882

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[26 June 1840]
Source of text:
RS:HS 22.55
Summary:

Thanks AD for a correction in one of JH's writings; tries to explain the partial echo that occurs when blowing across the end of an open pipe.

Contributor:
John Herschel Project

Herschel7824

From:
Sir John Herschel
To:
William Wallace
Date:
[16 December 1840]
Source of text:
RS:HS 22.72
Summary:

Gratified by WW's volume. Recalls JH's catenary theorems. Writes function to complete theory of exponential transcendents. WW's applications have greater practical bearing than JH's early efforts, which JH now finds difficult to decipher. Sorry that WW declared Mr. Gilbert's tables defective.

Contributor:
John Herschel Project

Herschel8271

From:
Sir John Herschel
To:
Christian VIII
Date:
[13 March 1840]
Source of text:
RS:HS 19.77
Summary:

Announces King's enrollment as patron of R.A.S. Recalls Danish monarches who promoted astronomy. Praises Altona observatory and work of H. C. Schumacher.

Contributor:
John Herschel Project

Herschel8272

From:
Sir John Herschel
To:
Elizabeth Drummond [Sr.]
Date:
[12 May 1840]
Source of text:
RS:HS 19.78
Summary:

Just moved [to Collingwood]. Will send information about ED's late son, Thomas Drummond. Recalls Drummond's fame and triangulation work on Irish Survey. Describes invention and first demonstration of Drummond Light.

Contributor:
John Herschel Project

Herschel8273

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[22 May 1840]
Source of text:
RS:HS 19.79-80 (C: RS:HS 22.52)
Summary:

How to reduce barometer observations and project them in curves. R.S.L. will provide table by H. C. Schumacher for this purpose. How to obtain 'law of decimal oscillations' for each station. WB's name will be affixed to results. JH needs receipt for observations, which belong to South African Literary and Philosophical Society.

Contributor:
John Herschel Project

Herschel8274

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[18 July 1840]
Source of text:
RS:HS 19.81
Summary:

L. A. J. Quetelet's observations follow centigrade thermometer and French meter. Latitude and longitude for five sites. Three sites are unknown to JH. Hopes WB completes [reduction of barometer observations] before B.A.A.S. meeting.

Contributor:
John Herschel Project

Herschel8275

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[24 July 1840]
Source of text:
RS:HS 19.82
Summary:

Advice on how to project barometric observations onto curves.

Contributor:
John Herschel Project

Herschel8276

From:
Sir John Herschel
To:
George Thomas Napier
Date:
[15 August 1840]
Source of text:
RS:HS 19.83 (C: RS:HS 22.75)
Summary:

Conduct of GN [governor at Cape of Good Hope, 1837-43] toward Andries Stockenström was unimpeachable. Stockenström's letters to JH show favorable view of GN. GN was not responsible for Stockenström's removal.

Contributor:
John Herschel Project

Herschel8277

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[9 September 1840]
Source of text:
RS:HS 19.84
Summary:

WB's tables [of barometer observations] are beautifully executed. Will submit them to B.A.A.S. Notes dissimilarity of British and Irish data.

Contributor:
John Herschel Project

Herschel8278

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[14 December 1840]
Source of text:
RS:HS 19.85
Summary:

Sends barometer observations from Flushing series, Elias Loomis in U.S., and [J. S.] McCord in Montreal. Can WB prepare these before next B.A.A.S. meeting?

Contributor:
John Herschel Project

Herschel8279

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[28 December 1840]
Source of text:
RS:HS 19.86
Summary:

Returns WB's 'Curves,' which JH presented to B.A.A.S. Sends results of 1837-1838 [barometer] observations by Captain [Edward] Belcher along Pacific coast of North and Central America.

Contributor:
John Herschel Project

Herschel8365

From:
Sir John Herschel
To:
[Hugh Percy (3rd Duke of Northumberland)]
Date:
[1840 to 1847]
Source of text:
RS:HS 19.164
Summary:

Lady [Pleasance] Smith conveyed Duke of Northumberland's interest in JH's color photographs. Encloses others, and explains use of light-sensitive juices of flowers to produce colors.

Contributor:
John Herschel Project
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